Job satisfaction refers to the degree of employees' satisfaction with their own work, which is an important indicator reflecting the quality of employees' work and life and the level of humanized management in enterprises, affecting employees' loyalty and professionalism, and also having an important impact on the incentive and retention of human resources in enterprises.

Employee's job satisfaction is closely related to employee's demand characteristics. The study of human nature in human resource management and many theories of management psychology show that people's needs are very complex and diverse, and at the same time they have certain characteristics and laws. Therefore, when people are engaged in specific work, they will have many expectations and requirements from the heart, and these expectations and requirements are often the factors that affect employees' job satisfaction. Of course, enterprises also have specific expectations and requirements for employees, such as expecting employees to exert their intelligence, constantly improve their working ability, work hard, be loyal to the enterprise and make their own contributions to the development of the enterprise. The formation of this psychological contract can be said to be caused by human nature and the nature of enterprises, and it is a tacit thing.

Then, it is of great significance to deeply analyze various factors affecting employees' job satisfaction, monitor and master employees' satisfaction level, take effective measures to communicate with employees and coordinate the relationship between enterprises and employees, so as to improve employees' loyalty, enthusiasm and performance.

In this paper, through questionnaires, interviews and other means, in-depth understanding of employees' views and evaluation of job satisfaction, the influencing factors and countermeasures of enterprise employees' job satisfaction were investigated and empirically studied.